Mark Hunt's weight cut is on track ahead of his interim heavyweight title bout with Fabricio Werdum at UFC 180 in Mexico on November 16.
The 'Super Samoan', who was given the opportunity to headline the card against Werdum after UFC heavyweight champion Cain Velasquez pulled out with a knee injury recently, was 137kg when he agreed to the bout.
But Hunt has since shed 10kg under the fitness regime of trainer Alex Flint and remained on track to make the UFC's heavyweight limit of 120.6kg.
Despite the deck being stacked against him, Hunt (10-8-1) embraced the chance to fight for a title on short notice.
"Training-wise, your body and mind are conditioned to expect certain things, and changing time zones means you need to re-programme your body and then you add the altitude factor which is about 2500-3000 feet above sea level and then you factor Mexico City's pollution problem," Hunt said.